2x³+18x²<span>-18x-162 =
2(</span>x³+9x²-9x-81)=
2(x²(x+9)-9(x+9))=
2(x²-9)(x+9)=
2(x+3)(x-3)(x+9)
Answer: k=3
Answer:
Step-by-step explanation:
3.5805
Answer: 48 people.
Step-by-step explanation:
1. You know that 
represents tha number of people that the cable car can safely carry.
2. If you know that there are 
and only 12 more people can board it before it becomes unsafe, you can write the following expression:
3. Now, you must solve for .
4. Then, the number of people that the cable car safely carry is:
Step-by-step explanation:
x = 47, m∠3 = 56°like this question
